Detachable sight for rifles



a O 5 2 u 3 3 March s, 1929. R. G. PACKAR JR- "1,704,060

I DETACHABLE SIGHT FOR RIFLES v 3 Sheets-Sheet 1 Filed May 31, 1927 Ralph 6.Packardjh v. A a r M m ,1 m M n o, M LP am. I v wlwzwxg 5 P 1 n i vagfr 6 G e L :W np 5 la R w S J M a R o AT R W. 1 A T 1; FM QK H 3 C w v. m s m J u w Q s m 1 H w.. R m I T E D L 3 *5. 3 a ch 5, 1929.

ET QICAL iNSSTRUMENTii March 1929. R. G. PACKARD, JR 1,704,060

na'ucnABLE SIGHT FOR RIFLES 1 Filed May 51, 192"! s Sheets-Sheet 3 awuento'c 7 Ralph G. Packardjl? 3513 170M Gum W GEOWIET Hitler.

i were parents.

Patented Mar. 5, 1929.

RALPH G. PACKARD, JR., F MORRISTOWN, NEW JERSEY.

DETACHABLE SIGHT FOR RIFLES.

Application filed May 31,

My present invention relates more particularly to telescopic sights for rifles, and while its novel features are of particular importance in connection with high power rifles, they will also be useful on any rifle where a telescope sight is desired. Specifically considered, it contemplates improved means for embodying many of the broad principles set forth in my application Ser. No. 661,559, filed September 8, 1923, now Patent No. 1,656,496, granted January 17, 1928.

As explained in said prior application, the telescope is rigidly and non-adjustably secured on a mounting frame, and the mounting is rigidly and non-adjustably but cletachably secured to the frame of the rifle, the necessary zeroing for elevation and drift, as also the field adjustments for range and windage, being accomplished by specially designed means for vertical and lateral adjustment of a sighting reticule located within the telescope.

An important feature is novel means for detachably securing the telescope to its mount and locking the mount to the rifle so rigidly that shift of the telescope relative to the rifle is impossible and the telescope and its mount will recoil with the gun as if it were all one piece.

My present invention includes improved means for applying the great power necessary for thus forcing devices, such as the relatively steep angle wedge lugs disclosed in said patent, to locked position and for setting up and maintaining the extreme elastic stress necessary to hold them there against recoil and counter-recoil.

The telescope is located in what may be called binocular relation to the regular iron sights and is clamped to a detachable mount which may be forced longitudinally of the gun barrel into close locking relation with a frame permanently fixed to the gun. To effect such wedging according to the present invention, a carriage is mounted to slide in the mount longitudinally of the gun and has a part projecting into a suitable opening in the frame on the gun.

Pivoted on the carriage at the outer side is a cam or eccentric which fits in an opening on a carriage slidable at right angles to the direction of movement of the first carriage and the clamping of the mounting on the gun is effected by turning the eccentric. Preferably such turning of the eccentric is done by an arm having a Vernier connection 1927. Serial No. 195,358.

with the head of the eccentric so that the lever can be adjusted closely with reference to the head of the eccentric and when it reaches a definite fixed position, the eccentric will be fully effective.

To provide for greater exertion of pressure in the final movement of the cam or eccentric, said arm has pivoted thereto at its free end a lever with a relatively long, somewhat fiexible, operating arm and a short work arm which may be engaged with one side of a recess into which it passes when the clampmg is efiected. Locking of the two levers in clampmg position may be effected in any suitable manner as for example by a catch which may be released by springing or bend- 1ng the power arm of the second lever.

It will be evident that by use of the apparatus of the present invention very great clamping force may be exerted and at the same tune the clamping may be effected or reheved easily and quickly. It should also be noted that due to the provision of the second slidable carriage the side thrust on the mounting will be materially reduced.

The above and other features of my invention may be more fully understood from the following description in connection with the accompanying drawings, in which Fig. 1 is a side elevation of the telescope anfld mount as applied to the left side of the r1 e;

Fig. 2 is a top plan view of the telescope al'hd mount in position on the frame of the r1 e;

Fig. 8 is a section on the line 33 of Fig. 1;

Fig. 4 is a rear view of the structure shown in Fig. 3;

Fig. 5 is a side elevation of the receiver frame showing the recesses for engagement by the telescope mount;

Fig. 6 is a sectional view taken along the line 66 of Fig. 2;

Fig. 7 is a sectional view taken along the line 7-7 of Fig. 2; and

Fig. 8 is a section on the line 8-8 of Fig. 5.

In Fig. 1 my telescope sight is shown as applied to a rifle comprising stock 1, receiver frame 2, and barrel 3 which may be provided with usual iron sights. As indicated more clearly in Fig. 2, I have selected for the purpose of illustration a gun designed by me which is more fully shown and described in my Patent No. 1,582,533, granted April 27, 1926, the peculiarities of which are not essential to my present invention and need be mentioned only to the extent of identifying rear sight 5, breech bolt 6, operating lever 7 down-pressure safety release 8, down-pres sure thumb trigger 9, and bolt releasing member 10. In this particular case the re ceiver frame, as shown in Fig. 5, is specially designed for detachably securing my telescope mount, but it will be evident that the proportions and disposition of the locking elements may be varied, to suit the frames of particular guns and it is almost always pos sible to braze to any gun frame a plate having the desired locking recesses either modified or, if desired, in the exact form shown in the drawings.

As shown in Fig. 1, the detachable carriage or mount for the telescope comprises a relatively long rigid frame or bar 11, having preferably integral therewith upward extending front and rear bracket members 12 and 13 respectively, terminating at their upper ends in semicylindrical seats in which the telescope is held by rin clamps 14 and 145 adapted to encircle the front and rear ends respectively of telescope tube 15. In each clamp the central portion, extending somewhat more thanasemicircle, is a relatively springy, bandlike member of great tensile strength, while the end portions 14", 14 are progressively thicker and more rigid toward the ends and are interiorly formed to lit the curved exterior of the bracket members. The design is such that by operating screw means, such as bolts 16 and nuts 17, the ring clamps may be tightened on the telescope tube with almost any desired pressure. The free ends first engage the seats and as the nut is tightened, the rigid end portion operates as a lever of the second class and also sliding wedge or cam element capable of tightening the band to apply clamping stress up to the limit of strength of the parts. To further prevent possibility of endwise shift of the telescope, its rear end is provided with an exterior lug which, as shown in Fig. 1, has a forwardly presented radial face abutting squarely against the rear face of bracket 13, thereby applying the recoil of the rifle directly to the telescope and relieving the rin clamps 14c, 14: of all stress except the endwise tension required for clamping the telescope to the bracket seats.

The bar 11 is provided on its frame engaging face with pairs of undercut guide lugs 18, 18, Figs. 2 and 7, at the rear, and 19, 19, Figs. 2 and 6, at the front adapted to engage undercut recesses in the frame, Fig. 5. Preferably, the outwardly presented side 20 of each projection is beveled so the projections cooperate for dovetail fit and simple sliding engagement with the corresponding undercut surfaces 22 in the frame. Preferably, these surfaces are parallel in direction of slide so as to wedge only upon outward stress. Inward wedging under endwise stress is eifected by providing the lugs 18, 18, with forwardly presented wedge surfaces 23 which abut directly against the transversely disposed wedge surfaces 24 in the frame. The effective wedging angle of these surfaces 23, 24:, is very "teep, as will be evident from Fig. 8, where the wcdging angle actually shown is about 60 degrees.

The top and bottom undercut guide surfaces 20, 22, are simply close fitting slide surfaces, preferably parallel with the axis of the barrel, their length of slide being made great enough to permit the transverse wedge sur faces 23, 20, to contact with the transversely disposed wedge surfaces 2%, 24, substantially before the forward lugs appr ach the ends of their slide recesses. The longitudinal slide recesses on the frame are cut away as at 25, 25, for the rear lugs or projections and 26, 26, for the forward lugs so that all of said lugs may be laterally applied to or removed from the frame through the corresponding cutaway portions.

, In this preferred design of locking lugs and recesses, all forward stress on the mount such as result from recoil of the gun, take effect solely on wedge surfaces 23, and as these surfaces have a steep wedging angle, a most rigid l ocking engagement may be had by very slight forward movement of the telescope mount and as before explained, the means for effecting this movement may have a c rrespondingly great motion-reducing, power-multiplying ratio for easily applying and maintaining great stress. As seen in Figs. 1, 3 and 4, the member or block that applies the thrust against the receiver frame of the gun, consists of a rearward projection 2'? from a plate or member 28 slidable in a slot 29 at the rear face of said bar 11. Said projection 27 is substantially in the shape of a rectangular box adapted to project into recess in the receiver frame 2. The end 27 of this box has a long surface bearing for thrust engagement with the wall 30 of recess 30, which is in a plane at right angles to and in the line of slide of the mount. The member or carriage 28 is provided with a forwardly project-ing boss 29 in which is mounted an eccentric 30 which in turn is rotatably mounted in a slide block or carriage 31, guided up and down in a slot 32 at the front of the member 11. Said eccentric 30 may be held in position on the boss 29 by means of a screw 33 threaded into the boss 29 The eccentric 30 is provided with a series of openings 34 to enable the annular end of an arm or lever to be adjustably secured to the eccentric by screws 36 passing through openings 37 in the annular portion of the lever and threaded into Vernier openings 34 of the eccentric. A very fine adjustment is necessary at this point, because the final locking movement is extremely small and because the positive, exact opposition of the stresses must be accommometastasis-rs.

dated by the elasticity of the steel of the clamping mechanism, the range of which is short by reason of its structural strength. To permit the locking mechanism to reach locking position within this small range of movement, openings 37 and 34 are arranged in vernier relation to enable extremely fine adj ustment between the lever 35 and the eccentric as will be described more fully hereinafter.

As shown in Fig. 1, the lever is in locking position and the eccentric 3O exerts pressure to the left against the slide block 31 and consequently against the member 11, and the member 27 exerts pressure to the right against surface 30 of the receiver frame 2. In this arrangement, it will be seen that the eccentric does not act directly against either the receiver frame 2 or the member 11 but moves up and down to adjust itself in relation to the position of the member 27, the movement of which latter is limited to sliding movement parallel with the axis of the rifle barrel. The movement of the member 35 to locking position is eifected by means of a second lever 38 pivoted at 39 at the end of the lever 35 and having a rounded end 39 extending into an opening 40 in the'bracket 12 between two webs 41. At its end opposite the rounded portion 39, the lever 38 is provided with upper and lower finger pieces 41 to facilitate the shifting thereof and with an end lug finger 42 to seat in a locking recess 42 at the lower side of a stop lug 43 when the lever 35 is brought to its locking position. It will be apparent that as a result of the use of the lever 38 in connection with the lever 35 a very strong wedging or camming action can be obtained.

To remove the member 11 from the rifle, the user grasps the finger pieces 41 and withdraws the lug 42 from the notch or recess 42 and swings downwardly the lever 38, thereby forcing down the right end of lever 35 and releasing the member 11 so that it may be slid rearwardly and removed laterally. It should be noted that the upper wall of the opening 40 extends farther to the front than the lower wall,., thus aiding in moving the lever 38 free of said opening 40.

In this operation, the lever 38 swings about the pivot 39 until it comes into engagement with a stop 35 on lever 35 and then the two levers may move as one to the dot-and-dash positions shown in Fig. 1.

The proper relation between the lever 35 and the eccentric 30 as required for properly stressing the elasticity of the parts, may be obtained by removing the screws 36, bringing two diametrically opposite vernier openings 37 in register with two suitably positioned vernier openings 34 of the eccentric, passing the screws 36 through the selected openings 37 to engage in the corresponding openings 34, and tightening the screws to maintain the adjustment. If, as shown, the

number of openings 37 is 18 and there are 20 openings 34, the adjustment may be made to one one hundred-eightieth of a complete revolution or two degrees.

It will be noted that while the telescope is thus removable and replaceable, it is functionally an integral part of the rifle frame which cannot be adjusted either vertically or laterally. lVhile vertically adjustable sights within the telescope offer no particular problem and are well known, it is obvious that for careful, accurate shooting, which the necessity for a telescope presupposes, lateral adjustment for windage, at the will of the user, is highly desirable and that some form of adjustable or permanent accommodation for zeroing and drift of the bullet is absolutely essential. My present telescope, which is disclosed and claimed specifically in my copending application Serial No. 195,357, filed May 31, 1927, provides very reliable, accurately adj ustable means for effecting each of these adjustments.

It should be understood that the telescope may be of any suitable form. The form illustrated has, however, particularly advantageous features and is fully disclosed in my co-pending application Serial No. 195,357, filed May 31, 1927.

I claim:

1. Means for detachably mounting a si hting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with camming means interposed between thrust surfaces on said frame member and said gun frame respectively to force said wedging surfaces into locking engagement and including a rotatable part for making the same effective, and actuating means for said camming means including an arm swingable to a definite locking position, means to lock said arm in said locking position, and means for adjusting said arm with reference to said rotatable part including a vernier arrangement of openings in said arm and said rotatable part adapted to have holes in register at two diametrically opposite points and fastening devices inserted in said openings.

2. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correill spondingly shaped recesses on the gun frame, in combination with camming means interposed between thrust surfaces on said frame member and said gun frame respectively to force said wedging surfaces into locking engagement and including a rotatable part for making the same effective, and actuating means for said camming means including a pivotally mounted arm attached to said rotatable part and movable to a definite locking position lengthwise of the gun and having a recess in one of its lateral faces, and a lever pivoted on said arm and slidably fulcrumed on said frame member, and having at its free end a projection to snap into said recess and lock said arm and lever in effective positions.

3. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with camming means interposed between thrust surfaces on said frame member and said gun frame respectively and including a rotatable part for making the same effective, and actuating means for said camming means including a pivotally mounted arm attached to said rotatable part and movable to a definite locking position extending lengthwise of the gun and having a recess in one of its lateral sides and a stop at one side of said recess, and a lever pivoted on said arm and slidably fulcrumed on said frame member, and having at its pow 1' end a projection to be moved into engagement with said stop and to snap into said recess.

4:. A gun including barrel, frame, stock and firing mechanism, in combination with a sighting telescope and means for detachably mounting it on the gun, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with camming means interposed between thrust surfaces on said frame member and said gun frame respectively and including a rotatable part for making the same effective, and actuating means for said camming means including a pivotally mounted arm attached to said rotatable part and movable to a definite locking position extending lengthwise of the gun, a lever pivoted on said arm and slidably fulcrumed on said frame member to move said arm to locking position, and snap locking means for holding said arm and said lever in locking position.

5. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with a camming means interposed between thrust surfaces on said frame member and said gun frame respectively and including a rotatable part for making the same effective, and actuating means for said camming means including a pivotally mounted arm attached to said rotatable part and movable to a definite looking position extending lengthwise of the gun, a lever pivoted on said arm and slidably fulcrumed on said frame member to move said arm to locking position, and snap locking means for holding said arm and said lever in looking position including cooperating parts on said arm and lever.

6. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric.

7. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said seems? most issrsuanemfra.

carriage and said frame member and including an eccentric on said carriage, a second carriage slidable on said frame member trans versely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric, including an arm shiftable to and from locking position and an adjustable con nection between said eccentric and said arm.

8. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigidbar or framemember having an undercut wedging surface extending vertically at right anglesto the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the gun and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric including an arm connected therewith and a lever pivoted on said arm and having a slidable engagement at one end with a fulcrum on said frame memher.

9. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar 01' frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame and spaced brackets pro ect1ng from sa1d frame member and secured to said telescope, in combination with a carriage fitting in a recess on the frame and'bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member alon said dovetail and said vertical extending we dging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric, including an arm connected with said eccentric, and a lever pivoted on said arm and adapted to have one of its ends slidably fulcrumed on one of said brackets for forcing said arm to locking position.

10. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a re cess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric, a member pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric lncluding an arm connected therewith and having a locking recess, a lever pivoted intermediate its ends on said arm and having at one end a projection to enter said recess and hold said arm in locking position and at the other end a portion adapted to be slidably fulcrumed between two parallel bearing surfaces on said frame member.

11. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertical extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an ec-. centric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric, including an arm adjustably connected with said eccentric, a lever pivoted intermediate its ends on said arm and having a rounded end adapted to slide between two parallel surfaces on said frame, the upper of said surfaces extending farther to the front than the lower so that the fulcrum end of the lever may pass downwardly at the forward end of said lower surface, means to lock said lever to said arm and hold it in locking position, and means to limit the pivotal movement of said lever relative to said arm.

12. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, and means to rotate said eccentric, including an arm shiftable to and from locking position and an adjustable connection between said disc and said arm including locking screws engaging circularly arranged recesses in Vernier relation, in said disc and arm respectively.

13. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame member, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a second carriage slidable on said frame member transversely of the path of the first mentioned carriage and in which said eccentric is rotatably mounted, means to rotate said eccentric, including an arm connected therewith and a lever pivoted on said arm and having a slidable engagement at one end with a fulcrum on said frame member, and means to lock said lever to said arm when the latter is in effective position, including a recess in one of these members and a projection on the other adapted to engage said recess.

14. A gun including barrel, frame, stock and firing mechanism, in combination with a sighting telescope and means for detachably mounting it on the gun, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage fitting in a recess on the frame and bearing upon a thrust surface of said recess and guided for sliding lengthwise on said frame member, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including a cam member pivoted on said carriage, a second carriage vertically slidable on said frame member and interposed between said cam and said frame member, and means for actuating said cam.

15. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the frame, in combination with a carriage bearing upon a thrust surface in a recess of said frame slidable lengthwise in said frame, and power multiplying means for forcing said frame member along said dovetail and said vertically extending wedging surfaces into intimate engagement with the corresponding wedge recesses on the frame, said power multiplying means being interposed between said carriage and said frame member and including an eccentric pivoted on said carriage, a carriage for said eccentric slidable on said frame member transversely of the path of the first mentioned carriage, means to rotate said eccentric, including an arm attached to said eccentric and a lever pivoted on said arm and having one end adapted to be slidably fulcrumed on said frame and its other end adapted to have a snap locking engagement with said arm.

16. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with camming means carried GFQMF WON.

by said frame member and interposed between thrust surfaces on said frame member and said gun frame respectively to force said wedging surfaces into locking engagement and including a rotatable part for making the same effective, and actuating means for said camming means including an arm swingable to a definite locking position and means to lock said arm in said locking position.

17. Means for detachably mounting a sighting telescope on a gun having a barrel, frame and stock, including a rigid bar or frame member having an undercut wedging surface extending vertically at right angles to the axis of the barrel and a dovetail extending lengthwise of said axis, both fitting correspondingly shaped recesses on the gun frame, in combination with camming means carried by said frame member and interposed between thrust surfaces on said frame mem ber and said gun frame respectively to force said wedging surfaces into locking engagement and including a rotatable part for making the same effective, and actuating means for said camming means including an arm swingable to a definite locking position, means to lock said arm in said locking position, and means for adjusting said arm with reference to said rotatable part including a Vernier arrangement of openings in said arm and said rotatable part adapted to have holes in register at two diametrically opposite points and fastening devices inserted in said openings.

Signed at New York city in the county of New York, and State of New York this 27th day of May, A. D. 1927.

RALPH G. PACKARD, JR. 

